Disclosed is a rice polishing machine. The rice polishing machine comprises a base. A sliding groove is formed in the base, a box body is connected with the interior of the sliding groove in a sliding mode, and an intermittent mechanism is further arranged in the sliding groove. A cylindrical processing chamber is arranged in the box body, and a feeding opening is formed in the top of the box body. A hull removing mechanism, a filtering mechanism and a polishing mechanism are arranged in the processing chamber in sequence from top to bottom. The hull removing mechanism is located exactly below the feeding opening, and comprises two driving motors, wherein gears are fixedly connected to rotating shafts of the driving motors. The filtering mechanism comprises a sliding rail and a screen mesh, wherein collecting boxes are arranged at the two ends of the screen mesh. The polishing mechanism comprises a rotating motor, a disc and a plurality of brush bristles. A plurality of supporting rods are arranged on the disc at equal intervals in the circumferential direction, an air chamber is arranged in each supporting rod, and fans are arranged in the air chambers. A plurality of exhaust holes which are communicated with the air chambers are formed in the supporting rods. A through hole is formed in the disc, and a rice box is connected to the through hole. By the adoption of the scheme, the rice polishing machine mainly solves the problem that according to a conventional rice polishing mode, rice is not uniformly polished.